Modeling Equivalent Expressions

Glenda bought some apps for her tablet. Each app cost $5. Let n represent the number of apps she bought. Write an expression to show the total amount she spent.

• n/5

• n + 5 

• 5n

• n- 5 

Jordan bought pencils for school.  Each pencil cost $.10.  Let p  represent the number of pencils she bought. Write an expression for the total amount she spent.

• p / .10

• .10p

• p +.10

• p- .10 

Write the phrase as a numerical or algebraic expression
3 added to n 

• 3 + n 

• 3n

• n/3

Write the phrase as a numerical or algebraic expression
the product of 7 and m

• m / 7

• 7 + m

• 7m

• 7-m

• 2

• 4

• 8

Let m represent the number of children playing soccer. Those children are separated into 4 equal teams. Write and expression for the number of children on each team.

• 4 /m

• m / 4

• 4m 

• 4 + m 

Use the distributive property to find an equivalent expression: 5(2f + 4)

• 10f + 4

• 10f + 9

• 10f + 20

• 30f

Find an equivalent expression for the given expression: 36x + 24

• 4(9x + 7)

• 4(9x + 8)

• 2(18x + 12)

• 12(3x + 3)

Choose the equivalent expression for the given expression: 2(r + y)

• 3ry

• 2r + y

• 2r + 2y

• 3r + 3y

Which expression is equivalent to 3x · 5?

• 35x

• 8x

• x15

• 15x